Circular-knitting machine.



E. HAAGA.

ClRCULAR KNITTING MACHINE.

APPLICATION FILED APR. 8.1912- RENEWED OCT. 11,1916.

Patented Nov. 28, 1916.

Ersks co Immune wasm members.

UNITED STATES PATNT FFTCE.

EMIL HAAGA, or CHEMNITZ, eEaMAnY.

CIRCULAR-KNITTING MACHINE.

Specification of Letters Patent.

rat-eaten Nov. as, 1916.

Application filed April 8, 1912, Serial No. 689,423. Renewed October 17,1916. Serial No. 126,203. 7

To all whom it may concern Be it known that I, EMIL I-IAAGA, a subjectof the King of Saxony, residing at Chemnitz, in the Kingdom of Saxony,Germany, have invented certain new and useful Improvements inCircular-Knitting Ma.- chines, of which the following is aspecification.

This invention relates to improvements in circular knitting machineswhereby the sinkers are guided more accurately than is possible with thecircular knitting machines of known construction.

The accompanying drawing illustrates the device, in which- Figure 1,shows a side elevation of the device partly in section and Fig. 2 is aplan view of a horizontal section of the device as shown in Fig. 1.

The various parts of. the device are referred to by alphabeticalcharacters, similar characters denoting corresponding parts in theseveral views.

The letter :0 designates the axis around which the revoluble parts ofthe machine revolve. The parts a, Z) and c, are rings, which, when themachine is in operation, revolve around this axis :0. This axistherefore is the center of all the revolving The sinkers d, are providedfor sinking the thread in a zig-zag course the thread being threaded inthe needles 6. This sinking is effected by the action of a sinker cam 9,upon the head f, of the sinkers cl.

The novel feature of this invention con sists in the arrangement bywhich the head 7, of the sinkers (l, reciprocates in slots 1, 2 and 3,which are provided in the three rings a, Z) and c. The two rings a. b,which have the guide slots, would be suiiicient to insure the properguiding of the sinker heads f. The third ring 0, merely serves forconnecting the two other rings a and 7), the one with the other.

The slots 3. in the ring 0, are radial and directed toward the axis m.The heads of the sinkers (Z have the curved parts 4, and 5 at each sideso that the sinkers not only reciprocate in the slots 1, 2 and 3, butalso execute the necessary oscillating motions. The sinker ring it.serves for regulating the vertical reciprocating motion of the sinkersd. The sinker ring it is arranged below the sinker guides 1, 2, 3.

In Fig. 1, the sinkers are shown in two positions, viz: in full lines(Z, and in dotted lines (Z. The sinkers swing to and fro, between thesetwo positions. When they are in the position d they touch the outerperiphery of the ring 4%. At a certain portion of this periphery, a cami is provided. The ring m, with the needles 6 and the sinkers (Z, rotatearound the axis :0, but the cam 71, remains at a stand still in itsposition. For this reason the sinkers cl must, each time they pass bythe cam i, swing outwardly upon the oblique surface. The sinker ring it,is formed in such a way that it will force the sinkers (Z, back into theposition indicated by the dotted lines as soon as the sinkers havepassed the cam i. The sinker cam is shown at g.

Having now described the invention what I claim is,

1. An improved guiding device for the sinkers of circular knittingmachines comprising two concentric rings a and 6, forming a v rticalslot, a third concentric ring 0, having radial slots therein andconnecting the two rings a and 1 a head on each sinker, the sides ofeach sinker head having portions sliding in the vertical guide slots, sothat each sinker head is accurately guided and the sinkers can oscillatein said radial slots when reciprocating, the sinker ring it beingmounted below the guides for the sinker heads.

2. An improved guiding device for the sinkers of circular knittingmachines, comprising in combination two concentric rings forming avertical slot, a third concentric ring having radial slots and servingfor connecting the two concentric rings a and 7), curved extensions ateither side of the head of the sinkers sliding in the vertical guideslot so that the sinker head is securely guided and the sinkers canoscillate in the said radial slots when reciprocating, substantially asdescribed and shown and for the purpose set forth.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

EMIL HAAGA. [us] Witnesses:

JOSEPH MUHLE, SIDNEY RroH.

{topics of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. 0.

